吉时利Keithley 2400-LV数字源表参数，与Keithley 2400源表的区别
Published on2026-03-12
吉时利Keithley 2400-LV是款精密直流参数测试设计的数字源表，具有六位半高分辨率和四象限的工作能力，是半导体器件、光电组件和材料特性分析的理想设备，以下就是Keithley 2400-LV的参数介绍。Keithley 2400-LV参数电压源输出范围：±200V DC电压测量范围：±200V DC电压分辨率：100μV电流源输出范围：±1A DC电流测量范围：±10pA-正反1A，具有pA级的微弱电流检测能力电流分辨率：最低位10fA最大直流功率：20W脉冲功率：部分模式下支持更高瞬时功率，但持续工作需限制在20W内基本精度：0.012%读数速率：在4.5位分辨率下，通过GPIB接口可达1700读数/秒；本地显示模式下约为60读数/秒。测量模式：支持2线、4线和6线远程感测，有效消除测试引线电阻带来的误差，这对低阻值器件的测试很重要Keithley2400-LV与标准版Keithley2400的区别电压量程控制2400-LV虽然硬件上可能支持更高电压，但其固件锁定在200V上限。若尝试通过前面板或GPIB/RS-232命令设置超过200V的输出，仪器将无法正常控制且不会返回错误信息，这可能导致测试程序逻辑判断失误。升级潜力官方提供升级服务（RC/2400-LV UPGRADE），可通过更换固件、校准和更新手册将其升级为全功能的Model 2400，解锁更高电压范围（如2400标准的200V但无控制限制，或更高型号的特性）。应用场景定位标准版2400适用于更广泛的通用测试，而2400-LV更适合预算敏感且测试需求严格限制在200V/1A/20W以内的产线或实验室。
Key Words：Keithley 2400-LV2400-LV2400-LV数字源表
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